Java 类org.eclipse.ui.dialogs.PropertyPage 实例源码

public void updateMessage( )
{
    PropertyPage propertyPage = getCurrentPropertyPage( );
    if ( propertyPage != null )
    {
        String message = propertyPage.getMessage( );
        int messageType = propertyPage.getMessageType( );

           // if error message exists, it takes precedence over page's non-error message
        if ( messageType < IMessageProvider.ERROR )
        {
            String errMessage = propertyPage.getErrorMessage();
            if ( errMessage != null )
            {
                message = errMessage;
                messageType = IMessageProvider.ERROR;
            }
        }

        setMessage( message, messageType );
    }
}

/**
 * get current PropertyPage
 * 
 * @return
 */
private PropertyPage getCurrentPropertyPage( )
{
    if ( getCurrentNode( ) != null )
    {
        IPropertyPage ipropertyPage = getCurrentNode( ).getPage( );
        if ( ipropertyPage instanceof PropertyPageWrapper )
            return ( (PropertyPageWrapper) ipropertyPage ).getPropertyPage( );
    }

    return null;
}

public void updateButtons( )
{
    if ( getOkButton( ) != null )
    {
        PropertyPage propertyPage = this.getCurrentPropertyPage( );
        if ( propertyPage != null )
        {
            getOkButton( ).setEnabled( propertyPage.okToLeave( ) );
        }
        else if ( getCurrentNode( ).getPage( ) instanceof WizardPage )
        {
            getOkButton( ).setEnabled( ( (WizardPage) getCurrentNode( ).getPage( ) ).isPageComplete( ) );
        }
    }
}

public void updateMessage( )
{
    PropertyPage propertyPage = getCurrentPropertyPage( );

    if ( propertyPage != null )
        setMessage( propertyPage.getMessage( ),
                propertyPage.getMessageType( ) );
}

public void updateButtons( )
{
    if ( getOkButton( ) != null )
    {
        PropertyPage propertyPage = getCurrentPropertyPage( );
        if ( propertyPage != null )
            getOkButton( ).setEnabled( propertyPage.isValid( ) );
    }
}

/**
 * 
 * @return
 */
private PropertyPage getCurrentPropertyPage( )
{
    if ( getCurrentNode( ) == null )
        return null;
    IPropertyPage currentPage = getCurrentNode( ).getPage( );
    if ( !( currentPage instanceof PropertyPageWrapper ) )
        return null;

    return ( (PropertyPageWrapper) currentPage ).getPropertyPage( );
}

public PropertyPageWrapper( PropertyPage propertyPage,
        DataSetDesignSession m_designSession )
{
    this.propertyPage = propertyPage;
    this.dataSetSession = m_designSession;
}

public PropertyPageWrapper( PropertyPage propertyPage,
        DataSourceDesignSession m_designSession )
{
    this.propertyPage = propertyPage;
    this.dataSourceSession = m_designSession;
}

public PropertyPage getPropertyPage( )
{
    return propertyPage;
}